Coral went back to her room, letting herself fall into her large bed with the microphone in hand.
She laid there for a couple minutes, thinking about how weird her situation feels sometimes, but that was mostly because of her age, everything else she actually loved quite much. Even (literally) fucking around with her big brother felt almost too natural at times. She lifted the stylus-microphone above her, rotating it around to see the reflections on it while thinking. Until one clear thought left her mouth.
"I want to be sixteen... then everything would be so much easier. Still more than enough free time but way more respect..."
And without herself even noticing, the microphone connected to the device did exactly that for her. But she wasn't just going to change age, far more than that. Since she was already taller, more muscular and far more well-endowed as opposed to full-grown women before even coming close to puberty, her body was in for a massive ride.
Her tall 6'4 body started surging upwards first. Whereas before her feet weren't even close to touching the end of the bed, they now easily reached above it. Not much changed when looking at her height written down, except that the six turned around to become a nine.
Next both her large breasts, thick thighs and toned ass were expanding in size as well. Models would have killed for a body like hers, but her puberty decided it was time to leave them behind once and for all. Her pillowy butt expanded until was sticking out more than her waist was wide. The same happened with her boobs, the G-cups were now replaced by mindboggingly huge, medicine ball-sized tits. Her toned thighs became squishy again as just one of them was wider than her waist again.
Her brother stated that she was beautiful before? Well, now she was drop-dead gorgeous. Her face alone was enough to overshadow entire rooms filled with supermodels, and without the slightest bit of make-up involved.
Lastly, her now entirely soft and comparably weak body was working overtime to get her back to her athletic standards and far beyond that. Her toned sixpack was replaced by a chiseled eightpack, still feminine as can be. Her back became the epitome of strength as it unfathomable strength was poured into her muscles to easily support her massive rack. Hard, dense muscles were peeking through the soft and squishy thighs to transform them into steelbeam-crushing trunks. Her beanbag-like ass soon had almost no natural jiggle to it at all anymore thanks to a super hard layer of muscle just beneath a few inches of fat. Her toned arms soon erupted into pistons of pure destruction, but staying unbelievably feminine along the way.
Laying there, the now 16 year-old, 9'4" tall, hyper-endowed and insanely strong Coral was flexing her bicep casually, watching it reach the size a coconut. Her dissatisfied and thoughtful look changed into a proud and joyful one as her increased age enabled her that much more, not to forget her incredible body, of course.
Over in his room, Adam had no idea what has just happened to Coral, but he was about to find it out sooner or later...